# The Traffic Signs Regulations and General Directions 2016, Paragraph 6

Extent: E+W+S

(1) The sign may be attached to the front or rear of a road maintenance vehicle when the vehicle is being used on a road which is subject to maximum speed limit of 30 mph or under.
(2) The sign may be attached to the rear of a road maintenance vehicle immediately ahead of a vehicle displaying the sign provided for at item 10 of the table in Part 6 when the vehicle is being used on a road which is subject to a maximum speed limit of more than 30 mph.
(3) The sign may be attached to the rear of a road maintenance vehicle.
(4) The sign may only be attached to the rear of a vehicle used to escort traffic through road works to indicate that the vehicle should not be overtaken.
(5) The sign may be attached to a vehicle.

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Source: https://www.legislation.gov.uk/uksi/2016/362/schedule/13/part/12/paragraph/6 (the official version)
Page: https://openlegislation.uk/traffic-signs-regulations-and-general-directions-2016/schedule-13/part-12/paragraph-6
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.